Abstract
Abstract MXene are a class of metal carbide and metal nitride materials with a two-dimensional layered structure. MXene Ti3C2Tx has the characteristics of good metal conductivity and adjustable chemical composition, which has attracted the attention of scientists. Recently, Mxene have shown strong nonlinear photonics and optoelectronic effect, which can be used to generate ultrashort pulsed laser. However, soliton molecules pulse in laser cavity based on Mxene have not been reported at present. In this article, MXene have been characterized systematically, and the nonlinear optical characters were measured. In addition, we combined MXene with taper fiber to make a saturable absorber device for an erbium-doped fiber laser. The modulation depth and saturation absorption intensity of MXene are 10.3% and 197.5 MW/cm2, respectively. Thanks to the outstanding character of MXene, a three-order soliton molecules pulse were generated in laser cavity. The center wavelength, pulse interval and spectral modulation period of soliton molecules are 1529.4 nm, 15.5 ps and 0.5 nm, respectively. The above experimental results show that MXene have broad application prospects in the fields of optical fiber communication, laser material processing and high-resolution optics.
Highlights
At present, with the rapid development of information technology, the demand for photoelectric functional materials grows with each passing day [1,2,3,4,5]
Soliton molecules pulse in laser cavity based on Mxene have not been reported at present
The average band gap of MXene is smaller than 0.2 eV, which indicates that MXene can be potentially used in mode-locked fiber laser as saturable absorber (SA)
Summary
With the rapid development of information technology, the demand for photoelectric functional materials grows with each passing day [1,2,3,4,5]. In many applications, pulsed fiber lasers have been studied extensively because they provide high power density. T. Feng et al.: MXene: two dimensional inorganic compounds experimental and theoretical results show that the output pulse characteristics of fiber lasers are various. In 2017, MXene was used in erbium-doped fiber laser (EDFL) to achieve mode-locked pulsed laser output [42]. In 2019, the EDFL based on MXene achieved highpower pulsed laser output with an average power of 40 mW [43]. The optical characteristics as well as application of MXene in pulsed fiber laser have been systematically studied. The experimental results show that MXene has broad application prospects in the fields of optical fiber communication, laser material processing and high-resolution optics
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